Binomial Expansions

Find the following. (Questions held on attachment)

Find the following:


a) The coefficient of x in the expansion of  


b) The coeffiecient of x^3yz^4 in the expansion of  


c) The coefficient of x^3 in the expansion of  


d) The coefficient of x^5 in the expansion of   is equal to the coefficient of x^4 in the expansion of.  Find the value of a.


e) Write down the first four terms in the expansion of   in ascending powers of x.

f) Without using a calculator, evaluate  to 8 significant figures.

g) If  , prove that

1)  
2)  
3)  

Attached file(s):

Question2.doc  View File